Hosts' ip can be  safely changed only before deployment.

In your case , it would be better if you start from scratch and reinstall the 
host with a new image, set the IP and then redeploy the HostedEngine  (both 
with correct VLANs).

What kind of data domain do you use. Maybe it will be easier to change that 
than a redeploy.

Best Regards,
Strahil Nikolov

На 23 май 2020 г. 15:56:09 GMT+03:00, "Stéphane Paillet" 
<> написа:
>I installed an ovirt node and its hosted engine in a lab. After several
>difficulties to install the engine (I don't know why, I didn't have any
>problem in the past), I would like to change IPs of both to put them on
>another vlan.
>How can I do that without break anything ? My main fear is that the
>domain used by the hosted engine use the IP of the node rather than its
>FQDN. I change other data domains paths, but don't find how to change 
>this one, 'cause I can't modify it, and I can't detach / delete it to 
>recreate another one. I didn't find how to move the engine on another 
>data domain using the node's FQDN in its path. For now, I don't use
>I just updated /etc/hosts defs on both servers.
>If someone could help me, telling me step by step how to change IPs on 
>each element in good order, I would be grateful.
>Thank you.
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Изпратено от моето Андроид у-во чрез K-9 Mail. Моля да ме извините за краткият 
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